Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1992-03-02
1993-08-10
Gensler, Paul
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333114, 333135, 333 21A, H01P 1213, H01P 516
Patent
active
052352978
ABSTRACT:
A radio frequency multiplexer provides a desired channelization plan by directionally coupling high quality linearly polarized filters to a waveguide manifold. The multiplexer includes a waveguide manifold for transmitting signals in a plurality of different frequency channels, a polarization translating coupling aperture arrangement, a circular polarizer, and filter for each channel. Wide band signals traveling along the waveguide manifold exit the waveguide through the coupling aperture arrangement. The linearly polarized signal from the waveguide manifold translates to a circularly polarized signal through the coupling aperture arrangement and these circularly polarized signals are translated back to linearly polarized signals by the circular polarizer. The linearly polarized wide band signals from the circular polarizer are then filtered with the filter device which allows only signals in a channel to be separated to pass. Signals in the channel to be separated then exit the filter through a single channel transmission line. The multiplexer apparatus also allows multiple channels to be combined in the waveguide manifold. Signals from each channel are combined without interaction of amplitude and phase of each signal. Also, any linearly polarized filter can be employed to provide the desired filter response for each channel.
REFERENCES:
patent: 2607849 (1952-08-01), Purcell
patent: 2999988 (1961-09-01), Marie
patent: 3668564 (1972-06-01), Ren et al.
patent: 4614920 (1986-09-01), Tong
A. E. Atia, Computer-Aided Design of Waveguide Multiplexers, IEEE Transactions on Microwave Theory, Mar. 1974, pp. 332-336.
Ming Hui Chen, A12-Channel Contiguous Band Multiplexer at Ku-Band, IEEE MTT-S Digest, 1983, pp. 77-78.
M. H. Chen, et al., A Contiguous Band Multiplexer, COMSAT Tech Review, vol. 6, No. 2, Fall 1976, pp. 285-307.
S. C. Holme, A 12 GHz Channel Contiguous Multiplexer for Satellite Applications, IEEE MTT-S Digest, 1984, pp. 295-298.
J. David Rhodes, Design of General Manifold Multiplexers, IEEE Transactions on Microwave Theory, vol. MTT-27, No. 2, Feb. 1979, 111-123.
J. David Rhodes, A Generalized Multiplexer Theory, IEEE Trans on Microwave Theory, vol. MTT-27, No. 2, Feb. 1979, pp. 99-111.
Franklin S. Coale, Applications of Directional Filters for Multiplexing Systems, IRE Trans on MW Theory, Oct. 1958, pp. 450-453.
W. D. Lewis, et al., A Non-Reflecting Branching Filter for Microwaves, Bell System Technical Journal, pp. 82-94.
Seymour B. Cohn, Impedance Measurement by Means of a Broadband Circular-Polarization Coupler, Proceedings of the IRE, pp. 1554-1558.
Matthaei, et al., Microwave Filters Impedance Matching Networks & Coupling Structures, 1980, pp. 847-865.
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